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Review & Installation Video

What's up everybody? Justin with americanmuscle.com. Welcome to my quick breakdown of the Roush axle-back exhaust system available for your 2015 Coyote powered GT. As you guys all just heard, the 2015 Roush axle-back definitely lives up to the claim of being one of the more aggressive axle-back systems available for your new GT. The same was true with the '11 to '14 S197 axle-back, and that same super aggressive tone has definitely found its way over to the new S550 kit.
That super angry or aggressive tone does come courtesy of Roush's unique open chambered or hollow chambered mufflers as they call them. These things are unique in the fact that they don't use a traditional fiberglass packing material. This allows for that really aggressive tone you guys heard earlier. At the same time, it's going to keep any interior noise or drone to an absolute minimum. In addition, these mufflers are a straight through design, meaning any performance you might see, while minimal typically here with an axle-back, will definitely be a little bit more than what you might see with a traditional chambered muffler.
All right, guys, going over the build quality a little bit here. You will notice what little piping there is has all been mandrel-bent two and a half inches in diameter. The entire system has been constructed from quality 304 grade stainless steel. This does include the four inch slash cut tips. These tips are cool because they do feature Roush's unique new chrome flashing process which they say will help reduce any discoloration over the years.
By now, guys, you should know that with any 2015 axle-back install there is some cutting required. However, like I tell you in some previous videos, as long as you take your time and follow some basic guidelines you should be good to go. These guidelines do include making sure you have a nice fresh Sawzall blade on hand, make sure you wear your eye protection of course, and last but not least measure twice and cut once. Thankfully, Roush does include some really nice detailed instructions with this kit on where to cut. As long as you take your time, follow the instructions, you can expect to spend about two hours from start to finish getting this thing bolted up.
If you guys are looking for one of the most aggressive axle-back systems from one of the most recognizable names in the Mustang world then be sure to check out the Roush axle-back for your Coyote powered GT right here at americanmuscle.com.

Aggressive Muscle Car Sound. Let your 5.0L Coyote engine howl with a Roush Axle-Back Exhaust. This innovative new Roush exhaust system features a hollow chambered muffler that results in increased air flow and a unique sound, with no in-cabin "boom" normally found with performance exhaust at cruising speeds.

Quality Roush Construction. Constructed from mandrel bent 304 stainless steel for a durable long life, the Roush axle-back exhaust system features two unique open chambered mufflers with 304 stainless steel 4" tips. The 4" tips are finished with a brand new chrome flashing process that is resistant to discoloration due to exhaust heat.

Cut & Clamp Installation. The installation of this Roush Axle-Back Exhaust requires cutting and removing the factory muffler assemblies and clamping the new muffler assemblies in place. Clamps and instructions are provided.

Application. This Roush Performance Axle-Back Exhaust System is designed to fit the all 2015-2017 GT Mustangs, including Fastback and Convertible models, for both great looks and great sound.

I have an 11 month old son, will this be too loud for him in the back seat? I also have a 2006 with a bunch of work done to it and it is too loud for him to ride in so when my wife and I go to shows I need this to be noticeable louder but yet not too loud for my son. Thanks.

Hello! Unfortunately loudness is totally subjective to each person, as far as exhaust systems go, an axleback is the more quiet option. However, Roush is one of the louder axleback exhaust systems. I would recommend trying to find someone local with an axleback setup on their mustang, so you can hear it in person to decide.

We recommend that you check with your local ordinances to determine if their are any decibel limits, but in terms of emissions you'll have no issues. When it comes to the exhaust, if it's not catalytic converters or headers, you won't have to worry about emissions.

Will this exhaust pair nicely with the Mishimoto H-pipe? I see all of the pairings going with an X pipe, but I really want that low pitched muscle rumble.

This Roush Axle-Back Exhaust does not directly attach to the Mishimoto H-Pipe, item 393882. There will still be stock portion of the exhaust that will be re-used that attaches the h-pipe to this axle-back. As long as that portion of exhaust is the same, the axle-back will fit flawlessly with that H-pipe.
http://www.americanmuscle.com/mishimoto-hpipe-1517gt.html

The Magnusson Moss Warranty Act: US Code – Title 15, Chapter 50, Sections 2301-2312, was created to protect consumer warranties.
According to this act, a manufacturer such as Ford cannot void the warranty of a vehicle due to the use of an aftermarket part unless they can prove the aftermarket part directly cause or contributed to the failure of the vehicle.

The Roush axle-back exhaust will be a great choice for those wanting a more aggressive exhaust tone, but don't want to spend a lot of money. Unfortunately black tips are not offered at this time. With the supercharger, a full exhaust with headers will be required.

Generally, axle-backs and cat-backs do not void the warranty. However, each dealer does have there own take on the warranty and you will want to confirm with the dealership offering the warrant to be safe.

The stock exhaust was too tame for me. I had a 2004 Mach 1 with Flowmasters on it that woke the neighbors (they love me). When I got my '16 GT I missed the rumble of the V8 that made it sound like a muscle car. Did my research and decided on the Roush Axle Back, since you can't put cat-back on a convertible without removing bracing. Simple install, maybe an hour and a half (and that's only because I was messing around with the look to make sure it was perfect) and it turned into a monster! Love the sound, very aggressive when it needs to be (full acceleration), but also tame enough that it doesn't bother my wife when we're just cruising with the top down. Would absolutely recommend!

I love the new sound, aggressive, mean and big different from the previous one on my 2016 GT. I would recommend it to any mustang enthusiast. I had mine install at a local shop and it them less than an hour to do. It's worth the cost.

my dad got this installed for his 17 GT in March. Sounds absolutely incredible now. he has had it for about 1000 miles. Louder on cold starts, but nowhere near unbearable. If anything, I would go louder. Absolutely no drone when cruising, quiet on the inside. Can be kept stock quiet if you shift at 2.5k rpms. If you see any of the other reviews stating it's too loud, its not at all. This is hands down one of the best exhausts to choose from. Cheap and has everything you want

Ordered the Rousch axle back mufflers after listening to the video provided. They sounded good on the video and the price was more than competitive. After having them installed which was as easy as had been described the sound was definitely not what was displayed on the video. At idle the sound was standard but once under way and shifting through the gears it sounded like a lake boat with open headers. Being what it was that there’s no return on installed items it left me with minimal choices all involving spending more money which really wasn’t in the plans. The solution ended up being visiting my local Midas muffler shop where they removed my H-pipe and installed magna-Flow resonators to tone it down. You know the saying behind every cloud there’s a silver lining well this turned out to be just that. I now have the sound I was looking for but took a costlier and longer process to get it done. Knowing that sound is a personal thing the sound produced with a H-pipe was just to loud for me.

I researched exhaust options for a long time before I decided to purchase the Roush Axle-Back exhaust. The right muffler required a bit more cutting and adjustment than the left muffler but no significant issues occurred during installation, which took about 25 minutes. The mufflers are high quality with chrome tips that look fantastic.
With the stock resonator and headers, the Roush Axle-Back gave my GT the volume and exhaust tone I was looking for. The clean, deeper tone sounds amazing, it's definitely louder but far from obnoxious. The car finally sounds great on startup and there's a marked sound improvement when accelerating, especially in the higher RPM range. Now, I can hear downshifts even in normal mode and Sport sounds even more aggressive. On the highway, there is no drone so conversations and music are just as easy to hear, and taking longer trips won't be anymore uncomfortable than having the stock exhaust. I believe it's a fantastic exhaust for my daily driver, and the lower price is a very nice bonus.

This system will not disappoint very much worth the money...Love the sound and it looks fantastic!
I recommend this axel back system
The Techs at Meineke loved it they said it sounded awesome and looked great!

I was looking for an exhaust that wouldn't be too loud, wouldn't drone while cruising and wouldn't bring every cop in the city down on me. My car is a daily driver so i didn't want to go lose my hearing every day but also wanted a bit more sound than the stock exhaust had. This exhaust was perfect for me. It was a super easy install, i think i installed it in 30-45 minutes. The directions were spot-on and i had no problems with the installation. I give the product a 3 star on the loudness scale because its not one of the louder axle-backs but for me 3 stars isn't a bad thing. However, if you're cruising in 6th and need to make a pass or go up-hill, when you give it a little extra throttle it does have a loud, annoying drone. It sounds better to down-shift to 5th to complete the pass and then back to 6th when you return to cruising. I recommend this axle-back for a daily driver where you don't want to lose your hearing from drone but want more tone out of your exhaust.

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Roush Axle-Back Exhaust (15-17 GT)

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